Why does Baez need to prove himself at AAA? Is there something he specifically is not doing well yet, or is this just a Theo philosophy that all prospects need to dominate at that level? If it's the latter, that's pretty bizarre. There have been top prospects who skipped AAA and did just fine -- obviously. Yes, he has further developing to do. He needs to further develop his plate discipline and show that he can handle some craftier pitching (kind of hand in hand, for that matter). And I don't see what's bizarre about expecting your players to dominate every level of the minor leagues before being promoted. Certainly the results of Theo's systems can't really be argued with. Let's not pretend this isn't entirely about the money. They have to say that he needs to develop more because they cannot say how stupid it would be to call him up for opening day from a financial perspective.